Trump changed aircraft in Turkey due to threat from Iranian proxy forces (theguardian.com)

• Threat from Iranian proxy forces prompted Trump to switch aircraft in Turkey.
• Intelligence indicated a possible missile attack on Air Force One.
• Trump had arrived on a less secure Qatari-donated Boeing 747-8.

"US President Donald Trump switched aircraft in Ankara, Turkey, earlier this month after US officials detected a credible threat from Iranian proxy forces targeting him and Air Force One. He had arrived on a new Qatari-donated Boeing 747-8 lacking advanced defenses. Intelligence indicated a possible missile attack. Secret Service recommended the change; Trump departed on the older Air Force One."